Marking and impression die and process of ornamenting and marking shoe uppers



Nov. 28, 1933. B. w. FREEMAN ET AL 1,937,195

MARKING AND IMPRESSION DIE AND PROCESS OF ORNAMENTING AND MARKING SHOEUPPERS Filed Aug. 16, 1929 5 Sheets-Sheet l B swyv VEN TOR. W

A T TORNEY.

Nov. 28, 1933. 5 w FREEMAN r AL 1,937,195

MARKING AND IMPRESSION DIE AND PROCESS OF ORNAMENTING AND MARKING SHOEUPPERS Filed Aug. 16, 1929 5 Sheets-Sheet 2 WI/g4 W ENTOR A TTORNEY.

Nov. 28, 1933. 5, w, FREEMAN T AL 1,937,195

MARKING AND IMPRESSION DIE AND PROCESS OF ORNAMENTING AND MARKING SHOEUPPERS Filed Aug. 16. 1929 5 Sheets-Sheet 3 ATTORNEY.

12 9 w fi- INVENTOR.

- Nov. 28, 1933.

B. w. FREEMAN El AL 1,937,195 MARKING AND IMPRESSION DIE AND PROCESS OFORNAMENTING AND MARKING SHOE UPPERS Filed Aug.,l6, 1929 5 Shets-Shet 4 lN VEN TOR.

Wv WWS- M A TTORNE Y.

1933. B. w. FREEMAN ET AL 7, 95

MARKING AND IMPRESSION DIE AND PROCESS OF ORNAMENTING AND MARKING SHOEUPPERS Filed Aug. 16, 1929 5 Sheets-Sheet 5 A TTORNE Y Patented Nov. 28,1933 PATENT OFFICE UNITED. STATES MARKING pAND IMPRESSION DIE ANDPROCESS OF ORNAMENTING AND MARK- ING SHOE UPPERS Benjaminv W. Freeman,Cincinnati, Ohio, and

William S. Herschel, St. Louis, Mo., assignors to The Louis G. FreemanCompany, Cincinnati, Ohio, a corporation of Ohio Application August16,1929. Serial No. 386,266

14 Claims. (01. 101-27) Our invention relates. to ornamenting andimpressing dies for use in the manuia'cture'of shoes and to a novelprocess for' marking and ornamenting shoe uppers coincidently.

5 In the Freeman Patent No. 1,681,033 there is 15 inverted diesengagingthe work from above, a

discussion of the difficulties in using ,the type of dies which havebeen heretofore used with this type of machine, will be significant ofthegscope of our invention.

. Inthe ordinary marking die, ink is applied to the surface of the dieand the die' is pressed down f with aemarking and impressing die of atype against the "work thereby'receiving the marking for example to showwhere the stitching should,

be applied. In a combination marking and cut left on theshoe element isthedeprelssed pattern which is sunk into the surface of the leather,

In. using leather of variable thickness, standard dies which do notallow for-variation in thicking at all will result on'thin' leather.Further; there are alwide variety of leathers such as embossed leather,snake and alligator finished leath er, kid and the like, which cannot beproperly marked with the impression diesheretofore-used It is an objectof our invention to heat the marking part of the die, so that regardlessof the thickness or character of the leather, a readily visiblepattern'such asth'at alongwhich'the stitching is to be applied,willaresult.

It is our object to provide various means for example, as by weaving aresistance wire through an insulated stripper plateof an 'ornamentingdie or by providinga heating chamber heated with a resistance unitunderneath the impression die danger of overheating the "die or wire andburning the leather, It isour object, especially when r the marking orimpression device forms. a part out die ink is not used, and the onlyimpression heating a'marking or impression die such, for

of the work support, to insulate and so position the heated marker thatit does not touch the work except'during the impressing operation, andthat the support upon which the work rests is not heated so as to mar orin any way damage the work.

v 'A stillfurther object is the provision of a die and means for heatingwhich will indent a shoe part vwith imitation stitching. heated die willimpress certain kinds of leather While an un-- with imitation stitchmarks, if the die is heated,

a permanent indentation is j effected in 7 all leathers which will nottend to smooth out and thus be eradicated.

I Theabove and other objects to which reference will be ade. in theensuing disclosure we accomplish by that certain combination andarrangement of parts of which we have illustrated several embodiments ofourvinven'tion.

In the drawings: 7 Figure 1 isa side elevation of a cut-out machinecarried by the stripper of an ornamenting die marking operation may heproceeded with in the same manner as cut-out work is usuallyaccomplished. a

Figure 2 is aperspective view of one type of die.

Figure 3, is a of die. 7 I 7 V Figuref l is a sectional view of the die'shown in Figure 2 taken along the lines 4-4,

Figure 5 is a-sectional view of the" die shown in Figure 3 taken alongthe lines'55.

perspective View of another type Figure 6 is a plan View of the vdieassembly shown'in Figure 3, v a v Figure 7 is a side elevation of thedie assembly shown in Figure 6. a

Figure 8 is a plan view of the die assembly shown'in Figure 2.

Figure 9 is aside elevation of the die assembly shown in Figure.8.

Figure; 10 is a plan view of a die assembly in which cut out dies,perforating dies, and heated marking or impression dies are mounted on asingle die support with a stripper plate carrying solid gauges, and amask having means for insuring proper registry with the die and markeralso included in the combination.

Figure 11 is a front elevation of the assembly shown in FigurelO.

"material.

ing into the base 12, and springs 15 force the upper adapted to bedecorated in the combination unit shown in Figures 1c and 11.

Figure 13 is a plan View of the combination shown in Figures 10 and 11with the mask in work holding position. 7

Figure 1a is a side elevation of the combination shown in Figures 19, 11and 13 in a shoe ornamenting machine.

Referring first to the general assembly shown in Figure l, the cut-outmachine has a supporting frame 1 with a fly-wheel 2 mounted therein. Areciprocating piunger 3 is driven from the fly-whee by a crank. Backingis fed from a supply a through the work space 5 and taken up on a rewindroll 6, being moved through the work space by web feeding mechanismindicated at '7. The general features of the machine are so fullydescribed in the Patent No. 1,581,033, that it is not thought necessaryto again go into specific details describing the construction of themachine.

There isalso shown an anvil type support 8 movable along slideways 9 toa position under the pressure plunger. Thus, the operator maypositionthe work and then move the support into operating position.

The marking and impressing die is indicatedgenerally at 10. The die unitmay be mounted on the support in desired manner, as by a thumb screw 11.

The die unit illustrated in Figures 2, 4, 8 and 9 has a base support 12on which is mounted a stripper plate 13 preferably of non-conductive Thestripper plate has pins 14 extendstripper upwardly after the markingoperation is complete. Within the stripper plate there is a channel 16preferably filled with some non-conductive filler such as asbestos and aresistance wire 17 is extended through the channel. 1 Above the channelis mounted the imitation stitch marking die, having a base 18 andupwardly extending serrations 19 which perform the marking and indentingoperation. The perforating die in this unit has circular upstandingcutting edges 20 which are exposed through openings 21 in the stripperplate.

The work to be ornamented and marked is adjusted in position of thestripper plate and moved in under the plunger where, with the depressionof the plunger, the work is carried into engagement with both theimpression and the cutting dies. It will, of course, be entirelyfeasible to use a mask for holding down-and assisting in the positioningof work with the die unit herein described in accordance with theteaching of Patent No. 1,681,033.

In the die unit illustrated in Figures 3, 5, 6 and 7 the combination ofparts is the same. There is a base 12 having a stripper plate 13 mountedresiliently in the base with pins 14 and springs 15. The resistance wire17, however, in this instance is sinuated up and down through slots 22in the stripper and forms the marking die itself.

' The ornamenting die 28 is similarly exposed H On the cut-out machinewe have indicated the current supply lines at 23 leading to a switch 24which may have a signal light 25 in series therewith to indicate whenthe switch is turned on. From the switch 24 the wires extend 'to arheostat 26 having a rotor 27 for adjusting the rheostat so that adesired amount of current will pass through the wires 28 to the markingdie resistance unit. The heating of the marking die may thus beaccurately controlled.

In the combination shown in Figures 10, 11, 18 and 14 we have shown abase 29 equipped with guiding tracks 30 which permit the unit to bemoved from work operating position under the plunger 30, as shown inFigure 14, along slideways 9a in the machine frame. In this combination,we'have shown adie support 12a with a stripper plate 13a having mountingpins 14a and springs 15a which press the stripper plate upwardly. Thestripper plate has openings 21a for the cut-out dies 20a, openings 21bfor the perforating dies 20b, and openings 210 for the marking orimpression dies 200. The dies 20a may be heated by heat units controlledby current from the wires 23a, and these dies may be suitably insulatedto prevent other portions of the unit from being heated and thus marringthe surface of the work. The dies 20a, 20b and 200 are mounted on thesupporting member 12a. The stripper plate carries fixed gauges 3a, whichmay be used for assisting in the proper positioning of the work, such aswe have indicated at 32 in Figure 12.

The dies 20a, 20b and 200 are mounted on the support 12a. For alsoassisting in the positioning of and for holding the work, wehave showna.

mask 33 having cut out portions 34 hinged to supporting posts 35, whichare resiliently mounted in an upright support 36 extending up from thebase 29. The mask'may have openings 37 which register withresilientlymountedpins 38 the work with the ornamenting dies.

While in the construction shown, the marking or impression dies areassociated with the ornamenting dies, and our process is carried out bywhich maybe used to insure proper registry of performing f the severaloperations of marking 1 5 and ornamenting at the same time,we considerthe use of our novel heated marking or impression die for this type ofwork, a new and useful invention in and of itself. The marking die may,

of coursa'be disposed on the under surface of a mask, in which positionit will function in a I similar manner. Also, the'die may be mounted inthe plunger, andfthe" plunger may be heated instead of heating thedieitself by direct connec- 'tion with electrical wire.

Having thus described our invention, what we claim as new and desire tosecure by Letters, Patent, is:- i

1. In combination with an ornamenting die for use in a. shoe ornamentingmachine, stripping means and marking means mounted thereon andassociated with said ornamenting die, and means for heating said markingmeans, said ornamenting die and marking means mounted for engage- 14Gment with the same surface of a shoe part.

2. In'combination with a cut-out machine for shoe uppershavingornamenting instrumentalities mounted for engagement with one surface ofa shoe part, a stripper and a marking die mounted thereon associatedwith said ornamenting instrumentalities and means for heating saidmarking die, said die mounted for engagement with 3. A die unit for ashoe ornamenting machine comprising an ornamenting die support, anornamenting die thereon, and a stripper plate of non;

conductive material having means for assisting in the positioning ofwork on saidplate, said plate having a marking die associated therewithand means for heating said marking die, said dies mounted for engagementwith the same surface of a shoe part.

4. In combination with the stripper plate of a shoe ornamenting diehaving means for assisting in the positioning of work thereon, a markingdie provided with means for heating same, said ornamenting and markingdie both mounted for engagement with the same surface of work.

5. A cut-out machine for shoe uppers having a movable ornamenting dieassociated therewith and an impression die associated with saidornamenting die provided with means for heating same, and means forassisting in the positioning of a shoe part relative to. saidornamenting and impression dies.

6. In combination with an anvil for supporting a cutting die, a stripperplate, a mask and a marking die having means associated therewith forelectrically heating same, said dies both facing in the same direction.

'7. In combination with a shoe ornamenting machine having cuttinginstrumentalities for cutting decorative patterns in shoe parts, amarking die resiliently mounted relative to said cuttinginstrumentalities as to impress work during the ornamenting operation,and means for heating said marking die.

8. In combination with an ornamentingdie having a flat stripper plateassociated therewith which supports work to be ornamented, and means forassisting in the positioning of work thereon, heated marking andimpression means mounted on said plate. 7

9. A shoe ornamenting machine provided with means for assisting in theaccurate positioning of work thereon, means for cutting out ornamentalpatterns in work and means for burning an impression in said work in thesame operation.

10. A die unit assembly provided with means for assisting in theaccurate positioning of work thereon, ornamenting dies for cutting outornamental patterns in shoe uppers and heated marking dies constructedand arranged to mark work during the cutting out operation.

11. A process for marking and ornamenting shoe uppers which consists inaccurately positioning work to be ornamented in relation to elementswhich penetrate the work, engaging the work with said elements, andstripping the work from the penetrating elements, and burning the workwith a pattern during the penetration operation.

vl2. In a machine for simultaneously cutting a portion from a shoe upperand indenting a stitch marking therein, a cutting die and a marking diefacing in the same direction, means for pressing the upper to said dies,and means for heating the marking die to burn a readily visible stitchmarking in each upper independently of pressure of the marking die onthe upper, which pressure varies according to the thickness of theuppers and consequent required travel of the cutting die through theupper.

13. In a machine for simultaneously cutting a portion from a shoe upperand indenting a stitch marking therein, a cutting die and a marking diefacing in the same direction, said marking die being mounted'to yield inthe direction opposite to that in which it faces, means for pressing theupper to the dies, and means for heating the marking die to burn areadily visible stitch marking in each upper under the varying pressuresof the marking die on the upper incident to travel of the cutting diethrough uppers of varying thicknesses. 3 v

14. The process of simultaneously cutting a portion from a shoe upperand indenting a stitch marking therein, which comprises presenting acutting member and a heated indenting member simultaneously both to thesame surface of 115 the upper, to burn the stitch markings in successiveuppers so as to be readily visible, under the varying pressures of themarking die on the uppers of varyingthicknesses incident to travel ofthe cutting die therethrough.

' BENJAMIN W. FREEMAN.

WILLIAM S. HERSCHEL.

